Gravesendの時間
21:23:05
日の出: 07:49:30 
日没: 15:50:3705:23:05
00:23:05
18:23:05
02:53:05
15:23:05
05:23:05
02:23:05
05:23:05
05:23:05
02:53:05
00:23:05
05:23:05
03:23:05
06:23:05
18:23:05
Gravesendと主要都市の時差
+7
+7
+7
+6.5
+6
+6
+6
+6
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5.5
+5
+5
+4.5
+4
+3.5
+3
+3
+3
+3
+3
+3
+3
+2
+2
+2
+2
+1
+1
+1
+1
+1
+1
+1
+0
+0
-3
-3
-3
-3
-4
-5
-5
-5
-6
-8